Full-Time Senior Data Scientist

Wellhub is hiring a remote Full-Time Senior Data Scientist. The career level for this job opening is Experienced and is accepting Portugal based applicants remotely. Read complete job description before applying.

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Wellhub

Job Title

Senior Data Scientist

Posted

Career Level

Full-Time

Career Level

Experienced

Locations Accepted

Portugal

Job Details

GET TO KNOW US
Wellhub is a corporate wellness platform that connects employees to the best partners for fitness, mindfulness, therapy, nutrition, and sleep.
THE OPPORTUNITY
We are hiring a Senior Data Scientist in our Generative AI area in Portugal! This is a Remote – Portugal position.
YOUR IMPACT
  • Multimodal Extraction: Apply state-of-the-art tools (OCR, vision-language models, document understanding frameworks) to interpret diverse input types;
  • Prompt Engineering: Develop and refine strategies for using LLMs to extract, summarize, and transform unstructured content into structured formats;
  • Data Quality & Structuring: Clean, validate, and transform messy, unstructured data into well-defined schemas;
  • Content Filtering: Define standards and build systems for cleaning, validating, and filtering data;
  • Human-in-the-Loop Feedback: Design feedback loops where experts validate or enrich data;
  • Scalability & Optimization: Architect cost-efficient, high-throughput data pipelines;
  • Research & Prototyping: Experiment with emerging tools and methods in the LLM + multimodal space;
  • Collaboration: Partner with data engineers and other data scientists.
  • Live the mission: inspire and empower others by genuinely caring for your own wellbeing and your colleagues.
WHO YOU ARE
  • Master’s degree (or PhD) in Computer Science, Data Science, Machine Learning, Statistics, or a related field;
  • Proficiency in Python and experience with libraries for web scraping, OCR (e.g., Tesseract, EasyOCR), and NLP (e.g., HuggingFace Transformers);
  • Deep understanding of LLM capabilities in multimodal and extraction contexts, including prompt engineering and few-shot learning;
  • Strong background in unstructured data processing: APIs, web scraping, HTML parsing, OCR, image/document analysis;
  • Strong analytical problem-solving skills, with a track record of turning noisy data into high-quality datasets for ML;
  • Excellent communication and documentation skills.
Preferred Qualifications:
  • Familiarity with visual-language models (e.g., BLIP, Donut, or LayoutLM) and multimodal pipelines;
  • Hands-on experience in prompt engineering and few-shot learning for data extraction tasks;
  • Experience deploying or supporting data acquisition systems in production environments.
For this specific role, please note that prior experience in data science and Pythonare mandatory requirements.

FAQs

What is the last date for applying to the job?

The deadline to apply for Full-Time Senior Data Scientist at Wellhub is 10th of October 2025 . We consider jobs older than one month to have expired.

Which countries are accepted for this remote job?

This job accepts [ Portugal ] applicants. .

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